Archive Nut, Prune and Olive Programs

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May 2025Archived

 

Field picture submitted by Elizabeth Fichtner

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Salt Leaching

Leaching is the transport of salts out of the root zone using irrigation water. The proportion of the irrigation water used specifically for this purpose is the leaching fraction (LF).
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Salinity Problems

Salinity Evaluation Soils and irrigation water contain dissolved salts, which affect water penetration and uptake, serve as plant nutrients, and may be phytotoxic in high concentrations.
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Soil Amendments

Amendments to Improve Infiltration Amendments target soil structure. The goal is to decrease soil resistance to water movement, thus improving water infiltration. Excessive sodium (Na+) causes swelling and dispersion of clay particles, blocking soil pores.
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Principles of Fruit & Nut Tree Growth, Cropping & Management

Tree growth, development & pruning Dormancy, chilling & rest breaking Flowering, pollination & fruit set Fruit development & thinning Tree water relations & irrigation Plant nutrition & fertilization Root growth & rootstocks Tree fruit pests and pathogens Harvesting For course content questions, ple...
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Flower Anatomy & Pollination

Flower Anatomy | Pollination | Seed & Fruit Development | Fruit Anatomy | Vegetative & Floral Tissue Development | Flower Development & Tree Morphology | Anatomy of Tree Fruit & Nut Crops | Terms & Definitions | Reviewers & Credits | Summary ChartIn addition to being beautiful, flowers play a centra...
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Quince

Quince Propagation | Scion & Rootstock Selection | Orchard Management | Deficiencies & Pests | Reviewers & Credits | Resources & Links Quince fruit and flower illustrations from Medizinal-Pflanzen by Franz Eugen Khler1897.Quince (Cydonia oblonga Mill.
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Persimmon in California

Persimmon Propagation | Scion & Rootstock Selection | Flower, Fruit & Cultivar Photo Gallery | Deficiencies & Pests | Reviewers & Credits | References & Links Persimmon, cv. Fuyu. photographer anon., Fotolia imagePersimmon, Diospyros kaki L.
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Stone Fruit Propagation

Apricot | Cherry | Peach & Nectarine | Fresh Plum | Dried Plum/Prune Overview | Propagation by: Seed | Cuttings | Grafting & Budding | References Modern stone fruit varieties are propagated vegetatively to maintain desirable fruiting traits.
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Stone Fruit Propagation by Cuttings

Apricot | Cherry | Peach & Nectarine | Plum | Dried Plum/PruneOverview | Propagation by: Seed | Cuttings | Grafting & Budding | References Direct stick cutting propagation is common for several clonally propagated rootstock varieties that do not produce true-to-type seed (Hartmann, Kester, Davies, &...
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